Choi Ji-su (Korean: 최지수; born July 21, 2000 in Incheon, South Korea), known mononymously as Lia (리아), is a South Korean singer under JYP Entertainment. She serves as the main vocalist and sub-rapper of South Korean girl group ITZY. She made her debut in ITZY on February 12, 2019, with the release of their single album, IT’z Different, with their lead single "DALLA DALLA". On January 3, 2022, Lia made her solo debut participating in the OST of MBC's Korean drama, The Red Sleeve, with the song "Always be your star". Read more on Last.fm